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Speculative model of AcrR in its DNA-bound form. The N- and C-terminal domains of the ligand-bound dimeric AcrR were individually aligned with those of the DNA-bound QacR (1JT0) to generate the DNA-bound form of AcrR. The model of the 24 bp IR model is shown in stick model. It is expected that two dimers of AcrR (in orange and deepolive ribbons) bind one double-stranded IR.
